Answer:
$28.8
Step-by-step explanation:
First we need to get the interest on the savings for the 4years. Since it is not compounded, we will use the simple interest (SI) formula.
According to the simple interest formula, SI = Principal × Rate × Time/100
Give principal = $24 rate = 5℅ time = 4years
SI = 24×5×4/100
SI = 480/100
SI = $4.8
Zoe interest for four years will be $4.8.
Amount she has saved for 4years = principal + interest = $24+$4.8
= $28.8
Answer: 
Step-by-step explanation:
Given
The total length of the trip is 
Car average is 28 miles per gallon
So, car requires

Price of gas is $2.95 per gallons

So, the cost of the trip is 
Answer:
Step-by-step explanation:
Joint variation has the equation
y = kxz
k is the constant of variation and needs to be solved for using the initial conditions, then filled in later to another equation related to the given info to solve for something else. We are given y = amount of oil used, x = distance traveled, z-squared is the speed. Our equation looks like this, to be exact:

Filling in with the initial conditions:
which gives us the
k = .0014166667
Now we need to find the amount of oil used, y, under other circumstances, but this time we have our k.

which gives us that the amount of oil used, when rounded to the tenths,
y = 24.0 barrels
Answer:
DEF
Step-by-step explanation:
The other triangle is a reflection
It is true because every term is the previous term multiplied by -2. So, -40 x -2 = 80, 80 x -2 = -160